how to bind bind Dropdown List

Question

0.00/5 (No votes)

See more:

C#

DataTable ds = new DataTable();
            ds = select.SelectData("Sp_Erp_Pur_PRQuotationMaster_Select");
            ddl_Show.DataSource = ds;
            ddl_Show.DataTextField = "Quotation_ID";
            ddl_Show.DataValueField = "Quotation_ID";
            ddl_Show.DataBind();

this is my code of binding dropdownlist select.selectData is my Dll Name that i used for fetching data from sql server

this code is work for same dropdownlist in one page and not for anther page in asp.net

Posted 23-Sep-14 18:28pm

Member 10271164

Updated 23-Sep-14 18:33pm

george4986

v2

Add a Solution

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Gihan Liyanage · Answer 1 · 2014-09-23T18:33:00

C#

DataTable dtTable = new DataTable();

        try
        {
            using (SqlConnection sqlConnection = new SqlConnection("Your connection"))
            {
                using (SqlCommand sqlCommand = new SqlCommand("Your Selection Query", sqlConnection))
                {
                    sqlConnection.Open();

                    using (SqlDataReader sqlDataReader = sqlCommand.ExecuteReader())
                    {
                        dtTable.Load(sqlDataReader);
                        sqlDataReader.Close();
                    }
                }
            }
        }
        catch (Exception error)
        {
            throw error;
        }

        ddlList.DataSource = dtTable;
        ddlList.DataValueField = "id";
        ddlList.DataTextField = "id";
        ddlList.DataBind();

Raul Iloc · Answer 2 · 2014-09-23T19:19:00

1.In ASP.NET is important the event that you use to init your controls, in generally the Page_Load event is used but could be also Page_Init in some situations. For more details see ASP.NET Page Life Cycle Overview[^]

2.In your case you should place your code that init and bind your drop down list in Page_Load event but only when the page is not post back, like in the next example:

C#

protected void Page_Load(object sender, EventArgs e)
{
   if (!Page.IsPostBack)
   {
      //Put your code for init and binding here!
   }
}

Santhosh Babu Mahimairaj · Answer 3 · 2014-09-23T20:15:00

SqlCommand cmd = new SqlCommand("SPC", new SqlConnection(ConfigurationManager.AppSettings["ConnString"]));
cmd.Connection.Open();
 
SqlDataReader ddlValues;
ddlValues = cmd.ExecuteReader();
 
DropDownList1.DataSource = ddlValues;
DropDownList1.DataValueField = "theName";
DropDownList1.DataTextField = "theName";
DropDownList1.DataBind();
 
cmd.Connection.Close();
cmd.Connection.Dispose();

how to bind bind Dropdown List

3 solutions

Solution 1

Solution 2

Solution 3

Add your solution here

Preview 0